Hello,
I am trying to setup a mail server (Postfix) on Ubuntu Server at my end but facing Relay access denied issue.
Mail Server DNS is mydomain.com and MX record is also added to the DNS server for the same. When i am sending out emails from outer domain to user1@mydomain.com, I configured the account on mail client (Thunderbird) and i am able to receive the mails in the users INBOX but the issue is that when ever i am going to send the mails from @mydomain.com to other domain from thunderbird and it simply denied it with below error in logs:-
ERROR (/var/log/mail.log)
Aug 28 16:53:53 ip-172-31-3-184 postfix/qmgr[5174]: 535454D34: removed
Aug 28 16:53:54 ip-172-31-3-184 postfix/smtpd[5537]: disconnect from unknown[xx.xx.xxx.xxx]
Aug 28 16:54:16 ip-172-31-3-184 postfix/smtpd[5537]: connect from unknown[xx.xx.xxx.xxx]
Aug 28 16:54:17 ip-172-31-3-184 postfix/smtpd[5537]: NOQUEUE: reject: RCPT from unknown[xx.xx.xxx.xxx]: 554 5.7.1 <user2@qasource.com>: Relay access denied test1@mydomain.com> to=<user1@otherdomain.com> proto=ESMTP helo=<[127.0.0.1]>
Aug 28 16:54:25 ip-172-31-3-184 postfix/smtpd[5537]: disconnect from unknown[xx.xx.xxx.xxx]
Aug 28 16:55:30 ip-172-31-3-184 dovecot: pop3-login: Login: user=<sales>, method=PLAIN, rip=xx.xx.xxx.xxx, lip=xx.xx.xxx.xxx, mpid=5553, TLS
Aug 28 16:55:32 ip-172-31-3-184 dovecot: pop3(sales): Disconnected: Logged out top=0/0, retr=0/0, del=0/21, size=166580
Aug 28 16:57:20 ip-172-31-3-184 dovecot: pop3-login: Login: user=<test1>, method=PLAIN, rip=203.190.154.38, lip=172.31.3.184, mpid=5563, TLS
Aug 28 16:57:22 ip-172-31-3-184 dovecot: pop3(test1): Disconnected: Logged out top=0/0, retr=1/697, del=0/17, size=78351
Below is my main.cf configuration file:-
# See /usr/share/postfix/main.cf.dist for a commented, more complete version
# Debian specific: Specifying a file name will cause the first
# line of that file to be used as the name. The Debian default
# is /etc/mailname.
#myorigin = /etc/mailname
smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu)
biff = no
# appending .domain is the MUA's job.
append_dot_mydomain = no
# Uncomment the next line to generate "delayed mail" warnings
#delay_warning_time = 4h
readme_directory = no
# TLS parameters
smtpd_tls_cert_file = /etc/ssl/certs/postfix.pem
smtpd_tls_key_file = /etc/ssl/private/postfix.pem
smtpd_use_tls=yes
smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
# See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for
# information on enabling SSL in the smtp client.
#smtpd_sasl_auth_enable = yes
#broken_sasl_auth_clients = yes
#smtpd_sasl_type = dovecot
#smtpd_sasl_path = private/auth
#smtpd_sasl_security_options = noanonymous
myhostname = ip-10-168-49-111.us
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
myorigin = /etc/mailname
#mydestination = mydomain.com, ip-10-168-49-111.us, localhost.us, localhost
mydestination = mydomain.com, ip-10-168-49-111.us, localhost.us, localhost
relayhost =
mynetworks = 127.0.0.0/8, 172.31.0.0/16
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = all
inet_protocols = ipv4
smtpd_recipient_restrictions = permit_sasl_authenticated, permit_mynetworks, check_relay_domains
I also test the scenario where the mails exchanging across cross domain is working fine from command line from the postfix server.
---------- Post updated 08-30-14 at 02:33 PM ---------- Previous update was 08-29-14 at 09:54 PM ----------
Any help will be appreciated
---------- Post updated at 02:34 PM ---------- Previous update was at 02:33 PM ----------
Any help will be appreciated